Hi all,

Just a minor remark: Cycles is not unbiased. The term unbiased is used for renderers that do no simplifications to speed up rendering. An unbiased renderer will have a minimal amount of settings and will always converge toward a result that is as realistic as possible.

Maxwell is an unbiased renderer, but Cycles is a biased renderer that uses methods to simplify the result in order to gain speed. This doesn't mean that Cycles is not a realistic renderer. V-Ray is also a biased renderer, and the physics math behind the light ray calculations is correct, but rendering is sped up by using methods like a light bounce limit, ray tresholds, blurring glossy reflections, noise reduction and other approximations that increase speed at the expense of realism. Using the right settings, a biased renderer can yield very similar results to an unbiased renderer while offering more speed.

Regards,

Metin